React Native 0.70.x升级ethers v5.7至v6.7后出现私有方法编译错误

云上老周

2026-7-11

React Native 0.70.x升级ethers至v6.7后私有方法编译错误解决办法

升级ethers到v6.7后出现以下编译错误：

error: node_modules/ethers/lib.commonjs/abi/abi-coder.js: /Users/macair/Documents/code/js/xyz_app6/node_modules/ethers/lib.commonjs/abi/abi-coder.js: Class private methods are not enabled. Please add `@babel/plugin-proposal-private-methods` to your configuration.
  111 |  */
  112 | class AbiCoder {
> 113 |     #getCoder(param) {
      |     ^
  114 |         if (param.isArray()) {
  115 |             return new array_js_1.ArrayCoder(this.#getCoder(param.arrayChildren), param.arrayLength, param.name);
  116 |         }
 BUNDLE  ./index.js

已尝试添加babel插件但未解决，可按以下步骤排查修复：

修正babel配置的模块匹配规则
原配置中使用相对路径./node_modules/ethers无法正确匹配模块，需改为正则表达式。同时确保插件名称与错误提示一致，修改babel.config.js：
```
module.exports = {
  // 保留原有配置...
  overrides: [
    {
      test: /node_modules\/ethers/,
      plugins: [["@babel/plugin-proposal-private-methods", { loose: true }]]
    }
  ]
};
```

配置Metro转译ethers模块
React Native默认不会转译node_modules中的第三方库，需在metro.config.js中添加ethers到转译列表：

const { getDefaultConfig, mergeConfig } = require('@react-native/metro-config');

module.exports = mergeConfig(getDefaultConfig(__dirname), {
  transformer: {
    transformNodeModules: ['ethers'],
    getTransformOptions: async () => ({
      transform: {
        experimentalImportSupport: false,
        inlineRequires: true,
      },
    }),
  },
});